Why Stella d'Oro Daylily Bottom Leaves Turn Yellow

A gardener asked why the lower leaves of Stella d'Oro daylilies turn yellow.

Common Causes

Tom listed several reasons: too much or too little water, excess fertilizer (especially high-nitrogen lawn fertilizer runoff), natural aging of older leaves, or overcrowding. Daylilies should be lifted and divided every three years to prevent crowding, reduced flowering, and disease.

He also noted that "Stella d'oro" means "Gold star," reflecting the cultivar's golden flowers.

Addressing cultural conditions and regular division keep daylilies healthy and floriferous.